2005 Polaris Sportsman 400/500 Service Manual, Page 227Get this manual
TRANSMISSION 35To remove the remaining bearing on the snorkel shaft (U), remove the retaining ring and press the bearing offU 3Inspect the output gear assembly (A), replace bearings if neededInspect the 91T gear for nicschips, or abnormal worn teethA
TRANSMISSION ASSEMBLY
1Install all new seals in the gearcasesUse the Rear Output Seal Driver (PN 2871698) and Rear Driveshaft Seal Guide (PN 2871699) to install the seals into the gearcasesSee illustration to identify seals for replacement4Install new Orings onto the snorkel tubeApply white lithium grease onto the Orings and threads of the snorkel tube